I think its of major benefit to every single person who is planning to launch ICO.
1. it create awareness about availability of ico under subject. there are a number of good icos which are not well known and thus end up failing.
2.It creates a community. community is very important since it facilitate the success of ico. These are the people who attract investors by pushing the icos in various social sites.
3. bounty is also beneficial since it facilitates distribution of icos globally. this is key to success of icos.